Alibaba.com offers 641 light bulb 100w products. About 99% of these are incandescent bulbs. A wide variety of light bulb 100w options are available to you, such as free samples. There are 637 light bulb 100w suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United Kingdom, and India, which supply 99%, 1%, and 1% of light bulb 100w respectively. Light bulb 100w products are most popular in Africa, Mid East, and Eastern Europe. You can ensure product safety by selecting from certified suppliers, including 282 with ISO9001, 128 with Other, and 13 with ISO14001 certification.